Nail treatment device



FIG. 1 is a top, front and right side perspective view of a nail treatment device showing my new design;

FIG. 2 is a top and rear perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top and left side perspective view thereof;

FIG. 6 is a top and right side perspective view thereof; and,

FIG. 7 is a bottom, front and right side perspective view thereof. 

The ornamental design for a nail treatment device, as shown. 